Plow



H. F. SAUNDERSON.

PLOW.

APPLICATION FILED SEPT. 4, 1918.

1,335,078. Patented Mar. 30,1920.

2 SHEETS-SHEET 1.

H; P. SAUNDERSON.

' PLOW. APPLICATION FILED SEPTA, 1918.

1,335,078, Patented Mar. 30,1920.

2 SHEETS-SHEET 2- fiweniwr /b'iobt ZMMIL Wil /Z6865 UNITED STATES PATENT OFFICE.

HERBERT rnncY sAUNDEasoN, or ransom), ENGLAND.

:eLow.

To all to ham it may concern:

- Be it known that I, HERBERT Pnnor SAUN- DERSON, a subject of the King of Great Britain, residing at Elstow WVorks, Bedford, England, have invented new and useful Improvements in or Connected with Plows, of which the following is a specification. v a

My invention relates to plows designed for use in connection with agricultural tractors or the like.'

Heretofore it has been'customary to haul independent plows coupled behind a tractor and it has been roposed to construct a plow for use in con unction with an agriculdisadvantage that the plow frame has to fol low the oscillatory movement which maybe imparted to the chassis when the tractor is running over uneven ground, and thereby causes the plow to work unevenly and throws a considerable torsional strain upon the plow frame.

The chief object of my. invention is to construct the plow frame, and provide for In carrying out my invention, I construct the plow frame preferably of diamond shape and I connect one side of this frame,

adjacent to the forward acuteangle, by a universal hinge or other joint directly, to a cross draft bar capable of vertical and lateral adjustment. The' other side 'ofthe frame is attached to the cross draft bar by a link connection between the said cross draft bar and a point on-the plowjframe some distance back fromthefront.

-The plow body or bodies is or are arranged in such relation to the chassis that,

say, the ri ht hand rear traveling wheel of Specification of Letters Patent.

tural tractor with a frame that can be eX-- tended beneath the chassis of the tractor and connected to the latter at the two sides.-

This arrangement, however, possesses the Patented. Mar. 30, 1920.

Application filed September 4,1918. Serial No. 252,548.

the tractor will serve as the front or furrow wheel of the plow.

A land or depth regulating wheel is carried by a crank or lever arm at one end of a shaft in hearings on the plow frame, and a hand-lever, which extends forwardly to a point adjacent to the drivers seat is provided for operating-the said lever armi For lifting the plow clear of the ground for traveling, the said crank or lever arm has connected to it a chain also attached to the chassis, and another lever arm and chain being arranged on the opposite side of the plow and operated by an independent handlever. 1

To enable my invention to be fully understood I will describe the same by reference to the accompanying drawings, in which I Figure 1 1s a side elevation of a plow, and

so much of a tractor as is necessary to illustrate my invention; and

Fig. 2 is a plan of the same.

Fig. 3 is a section on the line Fig. 1.

aindicates the chassis of the'tractor and b, b the driving or traveling wheels of the I latter. 0 indicates the diamond shaped frame of the plow and d the cross-draft bar to which the said frame is directly connected at its forward end or front acute angle, so that the side of the frame containing this acute angle is parallel with the chassis, the said cross draft bar being carried in brackets (Z dfixed to the chassis at a point well forward and below the level of the aXle of the traveling wheels. The point from which the pullis imparted to the plow frame is thus well in advance of the plow bodies 6, e

fixed to the rear part of the frame 0. 7 f indicates the link for connecting the plow frame a, on the other side, to the crossbar d,.this link being jointed to the said that movement can take place between them sothat the oscillations of the tractor will not be transmitted to the plow frame, thus rendering it possible, when the implement is in work, with one wheel of the tractor running in the furrewend the chassis i deeply into the. soil. This wheel is mounted on an axle at one end of alever arm i loosely carried at one end of the shaft 2' which extends across the plow fran'le 0 adjacent to the obtuse angles of the latter, the other end of the said lever arm being connected by a linkis to a hand-lever Z pivotedupon the plow frame at m and working in conjunction with a notched sector a. The lever Z extends into proximity to a seat 0 prowided for the attendant on the chassis, so that he can operate the same without leavlng the seat. I

To the front end of the lever arm h is attached one end of a chain p, which chain is suspended from a hook at the rear of the chassis a. At the opposite end of the shaft 2', upon which is the lever arm *h' another lever-arm g is loosely mounted connected by a chain rto the chassis and this lever arm 9 is operated by a hand-lever 8, similar to the lever Z, wor ing over a quadrant t and preferably upon the same pivotas the lever Z. V In practice the chain 7) is made of sufficient length to allow of any movement of the wheel 9 which may be requisite for regulating the depth, but so that when the lever arm it has been moved to a certain extent by lifting the lever Z the chain 79 will become taut and thus form a Joint of support which, when the lever Z is urther lifted, will cause the lifting of one side of the frame of the plow to hold the plow bodies above the ground. The operation of the lever s lifts the other side of the plow. It

will be obvious that when the chains are taut, their lower ends form fulcrums for the levers h andq so that the continued move ment of the levers Z and s in an upward direction will cause the said levers h and g to move around their points of support on the .said chains and lift the frame 0 in an upward direction by acting upon the cross shaft 2'. Thedriver can, if desired, grasp both levers simultaneously and so lift both sides of-the plow at the same time; In some cases springs can be arranged between the levers Z and s and the frame 0 which springs under the weight of the implement, will be compressed when the plow is lowered and will react when the levers are lifted and thus "assist in the lifting operation.

it indicates a trailing wheel which, if required, is arranged at the rear end. of the plow frame .and adapted tofrun in the fun row in. the usual manner. 1 -V In order to provide for adjusting the position of the plow frame atthe front end to suit the depth at which the'plow is to work, and also to provide, in the case of a multiple furrow plow, for adjusting the position of the frame with relation to the wheels according to the width of furrow being plowed, I as hereinbefore stated, make the cross bar cZ adjustable both vertically and laterally. 7

As shown in the drawings, the bracket 0Z isprovided with a series of'slots o, a (:see Fig. 3) one above the other and the other bracket cZ is provided with a series of holes w, 20 at corresponding distances apart so that bolt 90, 00 passing through the bar aZ and through the corresponding slots and holes will serve to adjust. the vertical position of the bar. To allow of adjusting the lateral I position the bar itself is provided at each end with a series of holes 0, 4) so that by adjusting the bolts zo in one 'OI other of these holes, '0, '2) the desired adjustment can be effected. The bard can also beadjusted vertically at that side only which is adjacent to the bracket (Z the other endof the said bar. turning. on its boltmas acenter.

' The distances" between the plow" bodies for instance, in the case of'a threej-furrow plow by fixing, saythe bodies, either on the inside of the frame or on the outsideof the frame, so as to diminish'or increase their distance from the center body. J

It is' to be understood that my invention is not limited to theuse of the special lever and link arrangement herein described, for liftmg the plow, as othermeans suitable for can be adjusted in a well known manner, V

the purpose may be provided forinstan'ce, i

I may arrange a friction drum in connection with some rotating part of the tractor aroundwhich a band is 'p'assed in such 'a manner that when the band is tightened upon the drum, for instance,'by means of a lever or chain, the band will be caused to traveliand pull on the chain to effect sired lifting operation. I Although in describing my invention I the dehave referred to the use of a diamond-- shaped frame, it is to be understood that the use of such a frame, although probably most convenient is not essential, as the arrangement can equally be applied in the ease of a -rectangular frame In suchcase, however,

such rectangular frame would only'be connected to the "cross-bar (Z on one side, alin k being provided between the cross-bar and some point at the other side of the' fr ame before referred to. Y

It is alsoto be understood that although my invention has been described specially as applied a plows it canbe equally used in which'would give the freedom of'moveinent connection with a cultivator or like tilling im lement.

wing to the plow, when out of action, being carried by the tractor it forms no im' pediment to the movement of the latter as is the case with independent or trailing plows. The tractor and plow can, therefore, be freely turned about and manipulated at the ends of the furrows by one operator, and corners, angles or other parts or irregular fields can be better and more easily plowed, for instance, by backing the tractor and then lowering the plow to the ground. Claims: 1. A ground treating implement, having a frame designed for attachment to a tractor and comprising the following elements, viz: a rigid bar on one side and. means for jointing this bar at its front end to a tractor, a movable bar on the other side, a joint connection between the rear end of the the said movable bar and the frame, and means for jointing the front end of the said movable bar to the tractor, the said movable bar with its joints constituting a flexible member which allows of oscillation of the plow frame relative to the tractor and oscillation frame.

2. In a ground treating implement a diamond shaped frame, means for jointing the said frame at one of the acute angles on one side to a tractor, a link for connecting the frame, adjacent to one of the obtuse angles,

to the tractor, and joints at the extremities of the said link for rendering the said link flexible.

3. In a ground treating implement of the kind defined in claim 1, the combination of levers and chains designed to be connected to the tractor, for lifting the implement clear of the ground, substantially as de scribed.

4. The combination with a tractor carrying a transverse bar which is located below the axis of the rear wheels of the tractor, of a plow frame having a rigid bar on one side,

extending parallel to the side barsof the tractor frame and having its front end pivotally connected to said transverse bar, and

a movable bar having its front end pivotally connected to the transverse bar and its rear end pivotally connected to the plow frame.

5. A combination as defined in claim 4, in which the transverse bar is vertically and laterally adjustable.

HERBERT PERCY SAUNDERSON. 

